Wheel.



U. S. JENKINS & J. BROMAN.

WHEEL. APLIGATIpN FILED MAY 25. 1908,

921 ,996., Patented May 18, 1969.

2 SHEETS-SHEET l.

U. S. JENKNS z'J. G. BROMAN, WHEEL.

APPLICATION NLBDMAY 25. 1908.

92 p99@ Patented; May 18, 1909.

2 SHEETS-SHBBT 2.

@m5 y il] f 'D JUH G. BRQll'iN, 0F CHIGGU, ILLNOIS.

Application .Eli-e0. Eday 25, i.

Je l"")wn that. we, l and Jo "l ens ol the AUnited Stuten, residir p et Chicago, in the county nl' i alle oi' illinois, have invented rerneelnl rovnnenls i rho rollo-f, n

lin

oi einen l` the invention nre to 'i shell he strong, -dnrahle and eliirient, `he parte ol'wliirhshnll he so eonslrneied and nngod with res/peet lo one another ns lo nrord n ri' `storing.;i :dining or eenterin l'ert ol severnl ol.l the rotatable eleinene ii l cortical plaine nl. right :ingles to ille axle, ,.l'lie end that l'rirlion heineen the p lzilerzil more' ont oi' l' iotwidile ond rho sinne ill he entirely :winded `j i, eral mee eindsi dire, yor so fis to dan ..1 L l l he i eniion i i ron-i 'ilelion plv. llie rrn'lx or We liiii'h if. is mounted :in ohstrnel'ion is eneonnlered lay the tire or einer roizirn'ig element, the inopellini torre will he raised or liiiwleil lo iilmnt n. horiz/entrai lino through the ijle in the direction ol' the inolion.

ons ollier ohier'ls :nid ndrnnlnges ol the invenlion `will he. diselosed in the sill;- ioii id desrriplion :nid explaination.

in order to enohle others .skilled in the irrt our inwnlion porliiins, to innlie and mine. nrn'ill non' proceed to dolo llie nrifoiripniiyiiig reduit-eil, ond.

Speceaton of Letters ntent.

`element neer its periphery Patented May 18,A 1909.

Figure l is n View in side-elevation of a, niieel embodying the inventiong'llig. .2 is a vertical sectional rien' tunen on line 2-f2 of Fig. l looking in the direction indicated-illy the errows,. :rnd illustrating the spaces beivfeen the eide ple-tes and rotatable elements pointed; Fig. 3 is n ieee View partly in section ii partly in elevation of the wheel, showing the ports in the positions illustrated innig. 1;- lig. 4 is an enlarged 'lrngnieinnl verticsrleeetionzd View taken on ine remi o'l Fig. 3 3 -irnrl-- Fig. 5is asimilar View ol like ports, showing si modi'ention in the rinistructio'n olI tl'iewheel.

Like numerals ol' reverence; refer tocorresponding part-s throughout the different views ol the drawings.

'The reference numeral 6 designates the body or inner rotating element of the wheel which is provided with a central opening` 7 lor the reception ol' the inde S upon which it may he mounted, in the usual or any Welllmown Way. '.l he hub portion 9 of the inner element is provided with n series ol' spokes l() 'whieh nire n'e'fernbly strengthened. by means ol' ribs il lorrned on each side thereowhieh rilis loper fronrthe huh portion 9 outwardly 1go nwo' the outer ends o'l the spokes 10,Whioh connect the annuler portion 6 with die lino s will ne understood by reference 'io the diilferent views of the drawings. The element 4.5 is provided Vith n peripheral groove 112 wl heh is angulo-r in Gross-section and has ils, apex i3 :it the middle of they rirn ol' the element o', or at n pointI equidistnnt between its sides. The sides ol' the-inner are preferably ller` and in parallelism 'with one another from near the ends ol' the rihs ill outwardly, so that sind element inn-Y' litnsnngly, but movaihly, between the side plantes used for holding tiro inner end ontereienientsin alinernent. with one another, :is will he presently e-X- plnined. lnrronnding the periphery of ythe inner element at a distance 'therefronris an outer ro-totohl element, which is designated :is e whole by `Vthe. reference numeral 14, and said outer element comprises a eirenlnr ring or hund 15, the, enter periphery of which is curved in cross-sentieri, usshownfso that/il pinned on o, latsurfaoe its edges will not impinge against the seine. i The band or rin g of the outer element is provided on its in ner lsurface-rnidwav between its edges with on inwardly projecting annular extension 16, the inner snrl ofn hieh extension isformed lltl CLT

angular in cross-section as at i? with the ape': 123 of said angie located midway hetween the sides of tae extension lo,v :is will he clearly understood n v reference to iD 2 and 4 of the drawings.

Inter osed between the periphery oi the inner e ement 6 and the inner periphery of the extension 16 on the enter rotatable eleF nient 'is an intermediate rotatable clement il) -which is in the form oi a ring and of greater diameter than the inner element 6 and oi diameter than the extension 16 oi' the outer element The inner and outer peripheries ol' the intermediate element i9 are' angular in ciioss-sectioii, that is to say, the inner periphery of said element has the apex 2() ot' its angular surface midway between the sides oi said element, and extended inwardly so to lit in the angiilar groove 'i2 of the inner elenient, and in siich a manner that the apexes 13 and 20 oi the annular portions of the inner and intermediate ements, respectively, will coincide in a vertical plane. The outer suri'ace og periphery oi' the element if) is provider; Evlith an angular groove 2i, the apex 22 of which will receive the apex 18 ol' the angular surface oi' the extension lo ol' the outer element in the movement of the parts. The intermediate element or ring 1E) is provided with a series of transverse openings 2P in which are located rivets or bolts 24 used for securing the side lates 25 to the sides oi the element 1.9, whic i side plates are in the form oi iiat rings and preferably have their edges inwardly beveled as at 26, for the purpose of preventing dust, dirt and other inaterialinding its way between said plates and 'the inner and outer elements.

n niiig, 5 of the drawings is shown a modincation in the construction of the wheel, which consists in providing the element 6 with a peripheral groove 27, which is curved in cross-section, and in providing the extension 16 on the band or ring l5 of the outer element with a curved inner periphery 28, instead of an angular inner periphery as in the other construction. In this modified ier-In of the wheel the intermediate-eleinent 19 has its outer periphery formed with a`- curved groove 2Q to correspond with the curved groove 2'? in the periphery oi' the inner element. ,in other respects the modified form of the wheel is the saine as that shown in the other views ol' the d rawings and abovc- 'inents 6 and i4, respectively, as well as the l intermediate element if), will have separate aries of rotation` and diil'erentiai speeds, but

l i l the load, the inner one oi said elenienis'supporting the axle and the weight upon the interinediaie and outer elements, and that the lai ier will provide the n'lieel-base with respee to the hoor or sui-hire upon which the wheel travels. forming the peripheral gri'iove in the inner element so that its deepest point will be inidway between the sides thereof, and by forming,r the intermediate element with its inner periphery ol'` a ef. rresponding shapeor form as that ol the groove in the inner element and its outer periphery with a groove the deepest point of which will be midway between the sides oi' the intermedia? e element, and by forming the inner periphery of the extension 16 on the outer element of a shape to correspond with theouter peripheral groove ot the intermediate element, saidv elements, in the rotation oi' the wheel, will be caused to register or aline with one another in. a vertical plane, thus reducingr or ahnos!`v entirely eliminating the friction `incident to the side plates 2f and the inner and outer elements.

in Figs.v 2, fi and 6 ol" the drawings, we have shown the spares between the', side plates 25 and the sides of the inner ziii loi1ter elements boingf exaggerated, but it will be understood that said spaces are very slight, in fact, will be almost infinitesimal, but so as to permit (it the movement of said elements between the plates. By curving the outer surface oi" the hand or ring l5, as shown, it is evident that the edges thereof will be slightly raised from the iloor so as to prevent the same being cnt or woi'n as the wheel passes thereover. it is' obvious that numerous in odilications oi' .minor details of the improved wheel may be employed, and for this reason we do not desire to limit ourselves to the specific com' struction herein shown angl described.

llavine' thus tnllv described our invention what we claim as new, and desire to secure by lietters-ljatent, is-- 1. in a wheel, the combination with an inner rotating` element provided with a peripheral groove having its deepest point midway y between the sides of said element, an inter- 'niediate element having its inner lperiphe\iy formed to correspond with the s iape ot' the peripheral groove in lthe inner element and rotatable within said groove and independently of said inner element and having its outer periphery provided with a groove having its deepest point midway between the sides oi' said intermediate element, and an ouior element having its inner periphery formed to correspond withv the peripheral groove ol' the intermediate element and rotat able within said groove and independently ol said element.

,ln a'wheel, the combination with an inv/iii coperate in supporting the weight ol' ner rotating;element provided with a periph- .ll is also apparent that, by`

i eral groove having its deepest pointl midwayf eeraee between the sides of said element, an intermediate element having its inner periphery formed to lcorrespond with the shape of the peripheral groove in the inner element and rotatable Within said roove and independently of said inner e ement and 'provided with a groove in its'outei periphery having its' deepest point midway between the sides y thereof an outer ele'iiient haviiw its inner n periphery formed to correspond with the v'louter peripheral groove-oi" the intermediate element and rotatable within said groove and independently of said intermediate elementLand means on each of the sides of the intermediate element to overlap the sides of the inner and outer elements.

25. In a wheell the combination with an inner rotating element provided with an angular peripheral groove having its apex inidway between'the sides of said element,V an intermediate element having its inner peri phery formed to'correspond with the periph- I eral groove vof the innenelenent and rotatable within said groove and independently ofsaid inner element and provided on its louter periphery withan angular groove hav in its deepest point midway between the si es of said element, and an outer element l l i i i l l l I I l l l haviiig its `inner periphery formed to correH spend with the outer' peripheral groove in the intermediate element and rotatable within said groove and independently of said intermediate element. f

4. ln a wheel, the eoinbinationwith an inner rotating element-provided with an angular groove havingv its apex midway between the sides of said element, an intermediate element having ,i ts inner periphery foi-*ined to ooi-respond with the peripheral groove of the inner element 'and rotatable rwithin said' groove. and independently of said inner ele` nient and provided in its outer periphery with an angular groove havingits apex. inidway between the sides Aof said element, an outer element having its inner dperiphery formed to correspond with the groove in the outer periphery of the intermediate elementand rotatable within said groove and independently of said element, and a ring-lileplate secured to each side of the intermediate element and overlapping the sides of the inner and outer elements.

` ULYSSES il. JENKINS.'

JOHN G. BRGh/AN.

llitnesses v,

Giras. C. Trennen, M. A, NYMAN. 

